This paper calculates the residual vibration of rotors and axis with a new method equivalent dynamic stiffness factor.
提出用动刚度系数方法对转子和轴系残余振动进行预测。
The element stiffness and load matrices are derived by Galerkin's weighted residual method.
应用加权余量法推导出单元刚度矩阵和单元载荷矩阵。
The contribution of Gauss node to element stiffness should be removed. So the residual stress of Gauss node can be brought to the structure as the load by element node.
当单元局部损伤后，由于损伤高斯点的承载能力全部丧失，需将高斯点对单元刚度矩阵的贡献从单元刚度矩阵中除去，此高斯点上的残余应力通过单元节点作为荷载加在结构上。
The contribution of Gauss node to element stiffness should be removed. So the residual stress of Gauss node can be brought to the structure as the load by element node.
当单元局部损伤后，由于损伤高斯点的承载能力全部丧失，需将高斯点对单元刚度矩阵的贡献从单元刚度矩阵中除去，此高斯点上的残余应力通过单元节点作为荷载加在结构上。
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